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Re: 75W/55W/35W HID Flashlight in Ebay

So you are getting better run times now? Cool. And yes, maybe you could check your battery while charging, every 30-40 mins or so, and when it hits 12.6v take it off the charger, because even though you get higher energy while overcharged it often drastically reduces the life of the cell. Also, stick the multimeter tip in your charger and the negative on the metal outside of it and see what its charging at, they may have given you the wrong charger.

Re: 75W/55W/35W HID Flashlight in Ebay

Hey there! Doodle I checked these voltages out before, 12.4 was max when charger showed , green lite full, i don't remember the other readings but based on other posters results I concluded mine were in the ball park, I am getting better run times since I started using it more and not always on hi. I didn't have the nerve to stick multimeter probes into charger connector, I don't like getting zapped, I will run the set of voltage checks the next time I charge the battery, but right now I am enjoying xbox 360 with my three kids, and helping them with their toys! My toys have to wait for a while, thanks to all for the good info and teaching me a lot, merry Christmas all!

Re: 75W/55W/35W HID Flashlight in Ebay

Originally Posted by dwar06

I am getting better run times since I started using it more and not always on hi.

This makes perfect sense because of Peukerts factor. Google PF and read how battery capacity (actual Watts delivered) is reduced the higher the load placed upon the battery is. A simple theoretical example. If a battery provides 10 Watt hours till it's completely discharged when powering a 5 watt load, that same battery will provide maybe 6 or 7 Watt hours when powering a 10 Watt load till it's completely discharged. If you're running your light in lower modes, you will get more capacity from the battery.

Re: 75W/55W/35W HID Flashlight in Ebay

Hey ther! I am a technology teacher, 8th grade I should know all this stuff, my basic electronics course taught me how to use a multiple meter, ohms law, circuit board design, with etching using acid bath(fun) and I enjoyed it all, I will learn more about lights and research info thru you guys and maybe teach my school kids a unit on lighting tied into energy conservation, another teacher bought a 5 million candle power beam, expecting to power a small solar panel to run a 10 inch solar car, he was disappointed, not enough heat, I would like to help him with that issue, perhaps it's kelvin measurements or magnification lenses that must be addressed?

Re: 75W/55W/35W HID Flashlight in Ebay

sounds strange but does anybody know if I can get bulbs at about 12000K? I need a portable light for UV photography. Any ideas? Thanks!

Originally Posted by mohanjude

thanks. The seller on ebay insisted that it was the voltage driving the bulb that would change the colour of the light. When I disagreed he became rather patronising. below is his response "no , my friend ,the color tempreture is decided by the volume of battery ,not by the bulb , 65w battery's volume is 6600mAh ,and the color tempreture is 6000K ,while 75w is 7800mAh , 8000k ,please note this ! by the way ,the difference between the 65w and 75w is the battery ,75w is updated from 65w . -qpstore_de"

Re: 75W/55W/35W HID Flashlight in Ebay

Originally Posted by futurekey

sounds strange but does anybody know if I can get bulbs at about 12000K? I need a portable light for UV photography. Any ideas? Thanks!

Welcome to CPF!

I think I saw your other post with the same subject but in connection with a conventionally formed flashlight. I've not come across any "Maglight" style HID's with bulb temps that high. 8000K is about it, I think. However, there is no shortage of HID kits on Ebay with 12000K color temp bulbs. If you buy a large spotlight and mod it to HID, you could easily fit a slim ballast kit with 12000 bulb into it. Regarding the quote you cited in your above post...A battery certainly does not determine HID bulb color temp. The different blends of gases and solids in the arc chamber does. To a small extent, "over driving" a bulb with more power than it was designed to operate at with a higher power ballast can result in lowering the color output of a given HID bulb by a little bit. Maybe this is what the Ebayer was trying to say. In his mind, Bigger battery = more power to the bulb. Obviously not the case with HID.

Re: 75W/55W/35W HID Flashlight in Ebay

Originally Posted by petrev

Ahh

So Outside / Inside

+ = B(ATT)+
D = H/L (HIGH/LOW?)
K = Green Wire (BATT-NEG?)

Cheers for the photos.

There are 2 Black wires going to the terminal -ve ? Are both the black wires going into the battery? Now looking at this design of the battery it does not appear to have the ability to monitor the individual cells when charging. This could lead to problems if 1 or 2 cells become faulty due to poor matching.

What is the point of the yellow wire ? The pin appears to be on the pad - is yellow wire acting as a bridge ?(not clear from photo)

Re: 75W/55W/35W HID Flashlight in Ebay

Thanks BVH for the quick and detailed reply. Looks like modding a spotlight is the way to go. There are a couple of portable HID 5200 on ebay claiming to accept H3 bulb. Does that mean I can get 12000K H3 bulb from those car kit and plug into this light or do I have to mess with the ballast or fittings etc? Another concern is that the diameter is like 8 inch/20cm which is huge that you can hardly get any serious filter on it to reduce VIS/IR contamination. Are there any other recommendations e.g. smaller diameter(preferably roughly 2~3 inches range) HID spotlight/searchlight/huntlight with easy replaceable bulbs you can find with color temp in the 11000K and above? Thank you! Any of you reading this post!

Re: 75W/55W/35W HID Flashlight in Ebay

Matt at BatteryJunction - dot - com (a vendor here on CPF) sells the Titanium line of HID lights. The N30 and the L35 are relatively small, 35 Watt HID lights and sport a 3-4" reflector. I am not sure of the "H" designation of their bulb but I'd guess it might be an H3. (Call and ask) I have one of each of these lights and they are great. Buy one of these and buy the appropriate "H" - 12000K bulb from an Ebay seller and you should be good to go. You'll want to get the light first so you can measure the distance between the bulb flange mounting face and the center of the arc chamber so you can verify with the Ebay seller that his/her bulb has the same measurement. Otherwise, you might loose the focus. This might sound difficult but it's a snap once you physically see what I'm talking about.

Re: 75W/55W/35W HID Flashlight in Ebay

Originally Posted by mohanjude

There are 2 Black wires going to the terminal -ve ? Are both the black wires going into the battery? Now looking at this design of the battery it does not appear to have the ability to monitor the individual cells when charging. This could lead to problems if 1 or 2 cells become faulty due to poor matching.

What is the point of the yellow wire ? The pin appears to be on the pad - is yellow wire acting as a bridge ?(not clear from photo)

Hi

Difficult to see exactly from the photos but looks like

BATT.NEG=Green
BATT.POS=RED
Level=BLUE
2 Black wires should be the node wires for the inter-cell points inside the pack.

Re: 75W/55W/35W HID Flashlight in Ebay

Hi, i didn`t take any pics of the whole unit disassembled unfortunately but it consist of the following:

The tube and head seems to be in one piece with the front glass ring holding the reflector and glass in place.
When you remove the reflector you will see three small screws around the bulb assembly, this is all that keep the bulb and ballast in place and it will drop out the same way as the battery when you unscrew them. The bulb and ballast is in one cylindrical piece as mentioned before and goes in and out the same way as the battery.
If you decide to disassemble yours i would recommend that you do so with the battery in place or at least have some foam or similar in the bottom of the tube to catch the ballast when it drops down.

Re: 75W/55W/35W HID Flashlight in Ebay

Originally Posted by Norselight

Hi, i didn`t take any pics of the whole unit disassembled unfortunately but it consist of the following:

The tube and head seems to be in one piece with the front glass ring holding the reflector and glass in place.
When you remove the reflector you will see three small screws around the bulb assembly, this is all that keep the bulb and ballast in place and it will drop out the same way as the battery when you unscrew them. The bulb and ballast is in one cylindrical piece as mentioned before and goes in and out the same way as the battery.
If you decide to disassemble yours i would recommend that you do so with the battery in place or at least have some foam or similar in the bottom of the tube to catch the ballast when it drops down.

Re: 75W/55W/35W HID Flashlight in Ebay

Hey...was given one of these for future gps contest I do. Should be interesting. Got a spare battery and light with it. Will have to play with it some more tonight as last night I got it kind of late in the evening. Biggest lite I have so far.

Re: 75W/55W/35W HID Flashlight in Ebay

I have two bulb/ ballast, the original one works fine the new one only flashes for a split second and I need to reset the battery.
Has anyone figured out why yet?

Ok...Maybe someone can explain this one then.
If I take a batt and the new light and line them up on a flat surface and hit power, the light works.
When I put those two back in the flashlight housing, I get a short flash of the bulb and need to reset the battery and no light.